Welcome to TIL (Today I Learned) Tuesdays, where we will discuss specific facts about something. Looking to learn about something new every day? Reddit.com has a wonderful and very active TIL community. Feel free to bring something to the table that you know that others generally don't.
I'll start. TIL that new toothbrushes are not more effective than old, worn ones.
FTA: "There is inconclusive evidence about the relationship between toothbrush wear and plaque removal. This randomized cross-over clinical trial aimed to validate or invalidate non-inferiority in the plaque-removal efficacy of old vs. new toothbrushes in the hands of 7- and 8-year-old children... in contrast to what is generally thought, the wear status of a toothbrush might be less critical for the maintenance of good plaque control. Cited studies were all performed with adults... The finding that heavily worn 14-month-old toothbrushes with severe bristle matting in the hands of 7- and 8-year-olds are not less effective than new toothbrushes with regard to plaque-removal capacity has important consequences for school brushing programs. If the old toothbrush can be maintained far beyond the generally recommended three-month period, school-based toothbrushing programs in underserved communities have a better chance to be sustained."
Plaque Removal by Young Children Using Old and New Toothbrushes
What did you learn today?
DISCUSS!
Original posting by Braincrave Second Life staff on Oct 19, 2010 at http://www.braincrave.com/viewblog.php?id=354
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We are a community of men and women who seek beauty and stimulation through our minds. We find ideas, education, and self-improvement sexy. We think intelligence is hot. But Braincrave is more than brains and I.Q. alone. We are curious. We have common sense. We value and offer wisdom. We experiment. We have great imaginations. We devour literacy. We are intellectually honest. We support and encourage each other to be better.
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Sep, 2017 update: Although Braincrave resulted in two confirmed marriages, the venture didn't meet financial targets. Rather than updating our outdated code base, we've removed all previous dating profiles and retained the articles that continue to generate interest. Moving to valME.io's platform supports dating profiles (which you are welcome to post) but won't allow typical date-matching functionality (e.g., location proximity, attribute similarity).
The Braincrave.com discussion group on Second Life was a twice-daily intellectual group discussions typically held at 12:00 PM SLT (PST) and 7:00 PM SLT. The discussions took place in Second Life group chat but are no longer formally scheduled or managed. The daily articles were used to encourage the discussions.